553
4
39
419
2
39
840
4
39
1083
0
39
485
9
38
1624
0
38
845
12
38
639
1
38
602
6
38
456
6
38
791
7
38
599
5
37
638
0
37
776
2
37
623
4
37
1218
11
37
527
8
37
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Keyword(s): #数学